Cal. Government Code § 9149.8

In carrying out its duties and responsibilities under this article, the commission shall follow accepted standards for restoration, preservation, and maintenance of historic structures, including all of the following, where applicable and feasible: (a) Standards for historic preservation, maintenance, recordation, and documentation of landmarks, promulgated by the United States Department of the Interior or its successor. (b) Guidelines and museum management procedures, established by the National Trust for Historic Preservation or its successor. (c) Standards, procedures, and guidelines for maintenance and protection of historic properties established or administered by the State Historic Preservation Officer and the Office of Historic Preservation. (d) The management, conservation, and accession policies and procedures for historic features and artifacts developed for the Capitol Museum project interpretive program of the Joint Rules Committee in connection with the State Capitol Restoration Project conducted under Section 9124. (e) Recommended procedures of the American Association of Museums.